Remove (get/set)PaintFlags from MSD

PiperOrigin-RevId: 224162294

Author: ymarian

lib/java/com/google/android/material/shape/MaterialShapeDrawable.java

@@ -669,19 +669,6 @@ public void setShadowColor(int shadowColor) {
     invalidateSelfIgnoreShape();
   }
 
-  @Deprecated
-  public int getPaintFlags() {
-    return 0;
-  }
-
-
-  @Deprecated
-  public void setPaintFlags(int flags) {
-    fillPaint.setFlags(flags);
-    strokePaint.setFlags(flags);
-    invalidateSelfIgnoreShape();
-  }
-
   /**
    * Get the current style used by the shape's paint.
    *